一种新型煤矿瓦斯抽放站防雷接地方法

针对目前煤矿瓦斯抽放站使用独立避雷针防护直击雷这一现状,分析了其所存在的问题及隐患,提出了一种新型防雷接地方法。该方法用防雷构架、上层避雷网取代避雷针以防护直击雷,用侧向防绕击避雷线以防护雷电绕击,同时外引接地装置,保证其与站内的易燃、易爆物质保持一定的安全距离。实际应用结果表明,该方法具有良好的防雷效果,对油库、煤气站等其他易燃、易爆场所的直击雷防护及接地也具有借鉴价值。

A new type of lightning protection and grounding method for coal mine gas drainage station

In view of present status that current coal mine gas drainage station using independent lightning rod for direct lightning stroke protection,problems and hidden troubles of the status were analyzed,and a new type of lightning protection and grounding method was proposed.The method uses lightning protection framework and upper lightning protection network to replace lightning rod for the direct lightning stroke protection,uses sideward lightning shield wire against shielding failure for lightning shielding failure protection.Meanwhile,it introduces grounding device outside the station,so as to keep a certain safety distance from the grounding device to flammable and explosive materials inside the station. The actual application result shows the method has good lightning protection effect,and also has reference value for direct lightning protection and grounding of oil deport,gas station and other flammable and explosive place.